Home / 3,128.16-4,698.90-1,896.12

Finding the Fourth Proportional to 3,128.16, 4,698.90 and 1,896.12

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Solution

The fourth proportional to 3,128.16, 4,698.90 and 1,896.12 is: 2,848.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.16 : 4,698.90 = 1,896.12 : x
  2. Step 2: Convert to fraction form
    3,128.16/4,698.90 = 1,896.12/x
  3. Step 3: Cross multiply
    3,128.16x = 4,698.90 × 1,896.12
  4. Step 4: Simplify right side
    3,128.16x = 8,909,678.27
  5. Step 5: Solve for x
    x = 8,909,678.27/3,128.16
  6. Step 6: Final answer
    x = 2,848.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.